I read review online on what could be the cause. The explanation of the cause of our dishwasher was right. Accumulation of Lime deposit in the Gasket, and water too hot. I ordered the door gasket via appliance parts pros, got it 2 days after, and it was a perfect fit. Our dishwasher is 100% fixed and I saved over $100 by not calling a repair service. It was so easy to do, i am the total novice, and took me less than 10 min.
Will definitively remember this service.

Ordered new top rack and changed out the rusty one. Taking the washer arm off the old one and putting it on the new one was a bit challenging but my husband is good with those things and it went well. Beware that NO instructions come with the rack and there is a bagful of parts that are probably if you want to change rollers or something.

I have tried to remove the burner assemblies by removing the torx screws but they were badly rusted, and unfortunately they all were broken during removal. I just discarded the ruined orifices and assembled the new orifices and burner assembly.